Life-line projectile.



UNITED STATES" PATENT orricn HARRY W. BROADY, 0F BAYSIDE, NEW YORK,ASSIGNOR '10 WELIN MARINE EQUIP- MENU. COMPANY, A QORPORATION OF NEWYORK.

LIFE-LINE PROJECTILE. I

Specification of Letters Patent.

Application filed September 28, 19-18. Serial No. 791,893.

To all whom it may concern:

Be it be known that I HARRY W. BROADY, a citizen of the United tates,and a resident of Bayside, borough of Queens, county of Queens, andState of New York, have invented certain new and useful Improvements inLife-Line Projectiles, of which the following is a specification.

This invention relates to improvements in life-line projectiles.

B the use of my invention a lifeline'projectlle is so designed that itwill first, receive the full projecting force of the charge within thegun; second, have an efficient bearing surface along the sides of thegun; third, pursue a direct course after it leaves the gun withoutpresenting a broadside t0 the air; fourth, substantially all progressimpeding projections beyond the periphery of the projectile areeliminated; fifth, the connection between the projectile and thelifeline will be made by means of a transversely-extending stationarypin located at a point slightly to the rear of the center of gravity andin the longitudinal axis of the projectile, a longitudinally-disposedradial slot having flat sides and diverging front and rear wallsextending from the said point of connection to the periphery of theprojectile so as to permit the connection and vertical swinging of aflexible connecting rod preferably formed of wire rope, between whichrod and the lifeline proper suitable shock-absorbing means, such as aspring, ma if desired be interposed.

n the accompanying drawings, in which similar reference charactersdesignate corresponding parts throughout the several views, Figure 1 isa side elevation of a gun with a projectile embodying my inventionseatedtherein before firing and showing, in

, broken lines, the direction of travel ofthe projectile and the changeof position of the line-attaching means relatively thereto; Fig. 2 is anenlarged central longitudinal section of a wlth my improved projectileseated therem, showing the radial slot to permit the vertical swingingof the line-attaching or connecting rod, and its position before firing;Fig. 3 is a side elevation of my projectile showing in dotted lines thesaid radial slot and the position of'connecting rod after firing; andFig. 4 is a section on the line 4-4 of Fig. 3 looking in-the directionof the arrow.

Referring now to the accompanying drawings, 1 indicates a projectilebody which, as shown, is in the form of an elongated cylinder so as toconform to the bore of a discharging gun 2 and present an even bearingsurface to such bore, has a flat vertical rear end 3 so as to receivethe maximum of explosive force from the charge within the explosionchamber of the gun within which it is seated, and has its forward endacutely pointed as at 4: so as to cut the air with a minimum offrictional resistance after its discharge.

I have found that the most efficient lifeline carrying position for aprojectile of the character herein described is at a point slightly tothe roar of the center of gravity of the projectile and. in itslongitudinal axis,

and also that any sliding movement of the lineattaching means relativelyto the projectile is undesirable. In order to permit the attachment ofthe lifeline to the projectile at said point, I preferably provide aradial slot 5 extending from the point of connection to the periphery ofthe projectile and having flat sides 5 -5 and diverging front and rearends 5"5, the slot 5 thus forming a channel to permit the verticalvswinging of a flexible connecting rod 6 preferably formed of wire ropewhich is pivoted to the transverse center of a pin 7 extendingtransversely across the longitudinal axis of the projectile at a pointslightly to the rear of the center of avity, as aforesaid, and the frontwall 5 o the radial slot 5 is preferably somewhat deeper at the front ofthe device to permit the flexible rod to project beyond the bore of thegun before firing, the rear diverging wall of said slot terminatingadjacent to the solid flat rear ends of the projectile. If desired,suitable means such as the spring 8 may be interposed between the line 9of the rod to take up shock orjar therebetween, though I have found thata rod formed of wire rope, as aforesaid, will in itself take up shockand may be used without interposing any further shock-absorbing device.Furthermore such a flexible rod will not'only take the shape of the slotbut its rear portion will conform to the direction of travel of theprojectile so that the line will receive a direct pull close to the pathof travel of the projectile.

Having described In invention, I claim:

1. A lifeline projecti e embodying an elongated cylindrical bodysubstantiallyuniform in diameter having a pointed forward end, a

jectile, a longitudinally-disposed radial slot.

formed in said body and communicatingbetween the outer periphery thereofand said pin and a lifeline movable within said slot from the front tothe rear of the projectile.

2. Alifeline projectile embodying an elongated cylindrical bodysubstantially uniform in diameter, havinga pointed forward end, aline-attaching pin extending transversely across the longitudinal axisof the device adjacent to and at the rear of the center of gravity ofthe projectile, a longitudinallydisposed radial slot formed in saidcylindricalbody and having flat sides and diverging front and rear endsextending from the transverse center of said pin outwardly to theperiphery of the projectile, and a lifeline connected to the transversecenter of said pin within'said slot.

' 3. A lifeline projectile embodying an elongated cylindrical bodysubstantially uniform in diameter, having a pointed forward end, aline-attaching pin extending transversely across the longitudinal axisof the device adjacent to-and at the rear of the center of gravity ofthe projectile, a longitudinally.

disposed radial slot formed in said cylindrical body and having fiatsides'and diverging front and rear ends extending from the transversecenter of said pin outwardly to the periphery of the projectile and arod pivoted to the center of said pin within said slot and adapted toproject outwardly beyond the bore of the discharging gun and to swingvertically in said slot from the front to the rear thereof after itsdischarge.

4. A lifeline projectile embodying an elongated cylindrical bodysubstantially uniform in diameter, havingapointed forward end,

a line-attaching pin extending transversely gravity of the projectile, alongitudinallydisposed radial slot formed in said cylindrical body andhaving flat sides and diverging front and rear ends extending from thetransverse center of said pin outwardly to the periphery of theprojectile and a flexible rod formed of wire rope pivoted to thecenter-of said pin within said slot and adapted to project outwardlybeyond the bore of the discharging gun and to swing vertically in saidslot from the front to the rear thereof after its discharge.

5. A lifeline projectile embodying an elongated cylindrical bodysubstantially uniform in diameter, having a pointed forward end, aline-attaching pin extending transversely across the longitudinal axisof the device adjacent to and at the rear of the center of gravity ofthe projectile, a longitudinallyv v disposed radial slot formed in saidcylindrical body and having flat sides and diverging front and rear endsextending from the transverse center of said pin outwardly to theperiphery of the projectile, a rod pivoted to the center of said pinwithin said slot and adapted to project outwardly beyond the bore'of thedischarging gun-and to swing vertically in said slot from the front tothe rear thereof after its discharge, a lifeline and a shock-absorbingspring interposed between said rod and the lifeline.

. In witness whereof, I have signed my nameto the foregoingspecification in the presence of two subscribing witnesses.

HARRY W. BROADY.

Witnesses FREDERICK P. RANDOLPH, HELEN 'V. HOLMES.

